Horton

Use condition variables to wait for checkpoints.

Thomas Munro <tmunro@postgresql.org>

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Commit: c6c9474aafa4de357ae424cd18b69e8bf7a4babe
Author: Thomas Munro <tmunro@postgresql.org>
Date: 2019-03-13T21:59:33Z
Releases: 12.0 
Use condition variables to wait for checkpoints.

Previously we used a polling/sleeping loop to wait for checkpoints
to begin and end, which leads to up to a couple hundred milliseconds
of needless thumb-twiddling.  Use condition variables instead.

Author: Thomas Munro
Reviewed-by: Andres Freund
Discussion: https://postgr.es/m/CA%2BhUKGLY7sDe%2Bbg1K%3DbnEzOofGoo4bJHYh9%2BcDCXJepb6DQmLw%40mail.gmail.com

Files

PathChange+/−
doc/src/sgml/monitoring.sgml modified +9 −1
src/backend/postmaster/checkpointer.c modified +17 −4
src/backend/postmaster/pgstat.c modified +6 −0
src/include/pgstat.h modified +2 −0

Documentation touched

Discussion